He helped on the ice at Tuesday's session, but was a spectator Wednesday.
"My brother is out there," Gibson told NHL.com. "I came to pick him up. … I'm on babysitting duty today."
Nine-year-old Justin Gibson is a burgeoning defenseman who got the treat of skating with a few of the top prospects for the 2012 NHL Draft.
Gibson said watching the clinic brought him back to last year in Minnesota.
"It definitely was an exciting time," he said. "I know I enjoyed it with my family. It goes by fast. The main thing is just enjoy it."
Gibson, who spent last season with the Kitchener Rangers of the Ontario Hockey League, said that was the advice he was giving his friends who were up for the draft this year.
"They ask a little bit of what to expect and stuff," he said. "I just say enjoy it, it goes by fast."
Contact Adam Kimelman at firstname.lastname@example.org. Follow him on Twitter: @NHLAdamK